def test_correctness(self):
""" Test for absorption values of VO2 on SiN substrate. Values provided from Martin R. Otto """
_, _, A = film_optical_coefficients(800,
thickness=90,
n_film=2.9 + 1j * 0.43,
n_substrate=1.9962)
self.assertAlmostEqual(A, 0.312495, places=5)
def test_film_interaction_correctness():
""" Test for absorption values of VO2 on SiN substrate. Values provided from Martin R. Otto """
_, _, A = film_optical_coefficients(800,
thickness=90,
n_film=2.9 + 1j * 0.43,
n_substrate=1.9962)
assert round(abs(A - 0.312495), 5) == 0
def test_conservation_power(self):
""" Test that R + T + A = 1 always """
wavelength = randint(200, 1000)
thickness = randint(50, 200)
n_film = random() + 1j * random()
n_subs = random() + 1j * random()
R, T, A = film_optical_coefficients(wavelength, thickness, n_film, n_subs)
self.assertEqual(R + T + A, 1)